The Department ofMechanical Engineering – Engineering Mechanics

Dr. Wim DesmetKatholieke Universiteit Leuven, Belgium

Proudly Presents

“Automotive NVH refinement- an overview of some recent experimental and numerical research activities at the K.U.Leuven - Noise and Vibration Research Group”

The K.U.Leuven - Noise and Vibration Research Group has a well-established research experience in the field of noise and vibration analysis of mechanical structures and mechatronic systems. The research activities are focused along three major lines of research: numerical modeling for acoustics and vibration, identification of linear and non-linear dynamic systems and active noise and vibration control. The research group has 5 full-time professors and about 30 pre- and postdoctoral researchers. In many areas, several Ph.D. theses have led to major improvements in methods that are now commercially available. LMS International, a world leading company in noise and vibration engineering, was founded in 1979 as a spin-off company of the research group.

In this presentation, an overview will be given of some on-going research activities in the field of experimental and numerical NVH refinement for automotive applications. Topics include the development of a novel wave based modeling technique for mid-frequency vibro-acoustic analysis, the use of a six-degree-of-freedom shaker table for the identification of non-linear structure-borne road noise transmission paths in passenger cars, analysis of tyre noise due to impact excitation, sound synthesis techniques for pass-by noise evaluation, active control of exhaust noise, semi-active suspension control for passenger cars and the design and manufacturing of lightweight materials for interior trim applications.

GraduateSeminar Series

2006-2007

Thursday, Mar. 22, 2007 Room 112, ME-EM Bldg.3:00 – 4:00 p.m.

Funding for the ME-EM Graduate Seminar Series is provided by the Department of Mechanical Engineering – Engineering Mechanics. Visit www.me.mtu.edu/seminar for more information.

Wim Desmet (°1969) obtained an M.Sc. degree in Mechanical Engineering in 1992 and a Ph.D. degree in Mechanical Engineering in 1998, both from the Katholieke Universiteit Leuven, Belgium. Since 1992 he is a member of the Noise and Vibration Research group of the Department of Mechanical Engineering, K.U.Leuven, where he is currently full-time Professor in vibro-acoustics. His research interests include numerical prediction methods for low- and mid-frequency (coupled) vibro-acoustic analysis, computational and experimental aero-acoustics of low Mach number confined flows, modeling of uncertainty and variability in dynamics, vibro-acoustic testing, sound quality and aurelization, active noise and vibration control techniques for steady-state and transient noise control engineering and combined multibody-finite element modeling for the dynamic optimization of mechatronic systems. His teaching activities include mechanical vibrations, noise control engineering and numerical prediction methods for vibro-acoustic design. He has published more than 200 papers in journals and international conference proceedings. He is the organizer of the annual international ISAAC course on advanced numerical and experimental techniques in applied acoustics and he is member of the organizing committee of the biennial International ISMA-Noise and Vibration Conference in Leuven, Belgium. He is currently Director of the International Institute of Acoustics and Vibration and member of the editorial board of Mechanical Systems and Signal Processing. He is also the managing director of AVICON, a noise and vibration consultancy firm.

Wim Desmet (°1969) obtained an M.Sc. degree in Mechanical Engineering in 1992 and a Ph.D. degree in Mechanical Engineering in 1998, both from the Katholieke Universiteit Leuven, Belgium. Since 1992 he is a member of the Noise and Vibration Research group of the Department of Mechanical Engineering, K.U.Leuven, where he is currently full-time Professor in vibro-acoustics. His research interests include numerical prediction methods for low- and mid-frequency (coupled) vibro-acoustic analysis, computational and experimental aero-acoustics of low Mach number confined flows, modeling of uncertainty and variability in dynamics, vibro-acoustic testing, sound quality and aurelization, active noise and vibration control techniquesfor steady-state and transient noise control engineering and combined

multibody-finite element modeling for the dynamic optimization of mechatronic systems. His teaching activities include mechanical vibrations, noise control engineering and numerical prediction methods for vibro-acoustic design. He has published more than 200 papers in journals and international conference proceedings. He is the organizer of the annual international ISAAC course on advanced numerical and experimental techniques in applied acoustics and he is memberof the organizing committee of the biennial International ISMA-Noise and Vibration Conference in Leuven, Belgium. He is currently Director of the International Institute of Acoustics and Vibration and member of the editorial board of Mechanical Systems and Signal Processing. He is also the managing director of AVICON, a noise and vibration consultancy firm.